Suspicious Scheduled Task Creation Referencing dllFake Batch Scripts (via process_creation)

ATT&CK techniques

Execution → Priv Esc

Recon
Resource Dev
Initial Access
Execution
- T1053.005Scheduled Task
- T1059.003Windows Command Shell
Persistence
- T1053.005Scheduled Task
Priv Esc
- T1053.005Scheduled Task
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects schtasks.exe creating a scheduled task whose command line references the dllCrt32 or sysCrt32 batch scripts that Red Canary observed dllFake using to persist its stealer for automatic execution. The batch-driven task registration is a distinctive persistence step for this family, so these referenced script names in a task creation indicate implant persistence.

Reporting behind it

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Suspicious Scheduled Task Creation Referencing dllFake Batch Scripts (via process_creation)

Pivot detection · T1053.005 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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